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Over [174]
3 years ago
15

How do computers convert physical signals into digital data?​

Business
2 answers:
klasskru [66]3 years ago
7 0

This is done by connecting a device called a modem to the digital computer. This process of converting a digital signal to an analog signal is known as modulation. On the receiving end, the incoming analog signal is converted back to digital form in a process known as demodulation.

forsale [732]3 years ago
5 0

computers convert physical signals into data by connecting a device called a modem to the computer.

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An investor is considering two investment, an office building and bonds. He can only invest on of them. The possible return from
Hitman42 [59]

Answer:

1) Calculate the expected return and variance of investing in office building.

expected return:

$50,000 x 0.3 = $15,000

$60,000 x 0.2 = $12,000

$80,000 x 0.1 = $8,000

$10,000 x 0.3 = $3,000

<u>$0 x 0.1 = $0                      </u>

expected return = $38,000

$50,000 - $38,000 = -$12,000² = $144,000,000

$60,000 - $38,000 = -$22,000² = $484,000,000

$80,000 - $38,000 = -$42,000² = $1,764,000,000

$10,000 - $38,000 = -$28,000² = $784,000,000

<u>$0 - $38,000 = -$38,000² = $1,444,000,000         </u>

<u />

expected variance: (0.3 x $144,000,000) + (0.2 x $484,000,000) + (0.1 x $1,764,000,000) + (0.3 x $784,000,000) + (0.1 x $1,444,000,000) = $43,200,000 + $96,200,000 + $176,400,000 + $235,200,000 + $144,400,000 = $695,400,000

standard deviation = √$895,800,000 = $26,370

2) Calculate the expected return and variance of investing in bonds.

expected return:

$30,000 x 0.4 = $12,000

<u>$40,000 x 0.6 = $24,000   </u>

expected return = $36,000

$30,000 - $36,000 = -$6,000² = $36,000,000

<u>$40,000 - $36,000 = $4,000² = $16,000,000</u>

<u />

expected variance: (0.4 x $36,000,000) + (0.6 x $16,000,000) = $14,400,000 + $9,600,000 = $24,000,000

standard deviation = √$24,000,000 = $4,899

3) Based on the expected return we should choose investing in a building, but if we consider the variance and the standard deviation of the investments, I would choose investing in bonds. The difference in expected returns is not that large (only $2,000) but the variance and standard deviations of investing in the office buildings is quite large, meaning that the risk is very high.

3 0
3 years ago
The inductive approach to writing a business argument Multiple Choice
kotykmax [81]

Answer:

The correct answer is 2. provides the supporting reasons before the primary message.

Explanation:

7 0
3 years ago
Which of the following best describes equilibrium?
QveST [7]

Answer:

C. A situation where no economic agent would benefit by changing his or her behavior

Explanation:

An economic equilibrium is when the agents are optimizing their decisions and opposing market forces are equal. This point allows the economic agents to maximize their utility and any change from this point will cause all agents to move away from potential maximum benefits.

In a natural equilibrium there is usually no government intervention so option A is false. Option B gives only one agent potential benefits and as such there is no equilibrium. Option D is conditional and may or may not happen as when the agents find missing information they would optimize again and move to an equilibrium.

Hope that helps.

3 0
2 years ago
Which of the following bonds has the greatest price risk? A 10-year $100 annuity. A 10-year, $1,000 face value, zero coupon bond
kogti [31]

Answer:

A 10-year, $1,000 face value, zero coupon bond.

Explanation:

Zero coupon bonds are sold at a deep discount, and do not pay coupons, only pay the full par value price at maturity.

Zero coupon bonds are riskier than other types of bonds because they are subject to interest tax risk: this means that even if the bond does not pay coupons, the IRS still computes an imputed interest that the bond would have received, and charges an income tax over it.

If the bondholder of a zero coupon sells the bond before maturity, the risk of having paid more in both income taxes on imputed intersest, plus the initial price of the bond itself, than the gain from the sale, is very high.

5 0
3 years ago
A market that has many sellers, has standardized products and is easy to enter and exit is an example of which type of market st
Gekata [30.6K]
Uhh I need more info
4 0
3 years ago
Read 2 more answers
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